Seiko Izul SDAA007 Spring Drive Chronograph

foversta · 2009-11-14T14:21:03Z

Explore the Seiko Izul SDAA007 Spring Drive chronograph with its unique rotating titanium case. Discover its design philosophy and collector insights.

foversta

WPS member · Seiko forum

10 replies13918 views19 photos

Foversta's exploration of the Seiko Izul collection, particularly the SDAA001/SDAA007 with its unique rotating case, offers a fascinating look at Seiko's innovative approach to chronograph design. His comparison to Jaeger-LeCoultre's Duomètre highlights a shared philosophy in separating time display from chronograph functions, making this a valuable read for collectors interested in unconventional horological solutions and Spring Drive technology.

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Basically, the Izul collection is composed of 2 models:

- one with a rotating case (SDAA001 or SDAA007) (white or black dial)
- one without (SDAA003 or SDAA005) (white or black dial)

They all have a titanium case.

For me it's a bit the duometre by Seiko... of course technically, there is no common point and here the technology used by Seiko is the Spring Drive. The Izul and the Duometre share the idea that the chronograph functions are clearly seperated from the time display: the hands don't have the same color and the layout of the dial is organized with this purpose.

Both models get the same care in the details, great finishings, original design.

But obviously, the most interesting one is the rotating case model.

This watch is huge (51mm), thick (14,2mm) but thanks to its design (look at the case shape and the inclinated dial), the watch looks "slender". Strange but true !

With the pushers at the bottom, you are in the time display mode. Turn the case, you get a bullhead watch and you are in the chronograph mode. It is not a new idea from Seiko but there is a sort of coherence between the design, this feature and the Spring Drive technology. I really like this !

The detail that didn't convince me was the strap. Maybe because it is difficult at the end to find the right material which perfectly matches with the watch design. Because I would replace the original one but I don't know with what...

The SDAA003 seems to be sad, too quiet when we compare it with the SDAA001... even if it is a bullhead watch which is not so usual in the industry.

The watch is smaller (47,2mm) and as thick (14,4mm).

I was less seduced by this one even if we feel the same quality.

SDAA003 on the left, SDAA001 on the right:

If you have the opportunity to see the Izul collection, don't miss it ! The SDAA001 is for me, one of the most attractive Seiko.

Thanks a lot to the Seiko Center of Paris.

Fr.Xavier

This message has been edited by foversta on 2009-11-14 14:22:04

About the Seiko Seiko Izul Ref. SDAA001

The Seiko Izul line, introduced in 2007, represented Seiko's foray into premium sports watches, positioned alongside Grand Seiko and Credor. It was designed to showcase advanced horological capabilities within a distinctive aesthetic, aiming for a 'new era' in Seiko's sports offerings. The line was notable for its short production run, with models being withdrawn from retailers after only two years, contributing to their subsequent rarity.

Central to the Izul collection was the Spring Drive 5R85 chronograph movement. This caliber featured a column wheel and vertical clutch construction, offering a 72-hour power reserve and an accuracy of +/- 15 seconds per month. The SDAA001 variant, specifically, featured a unique 360-degree rotating case, distinguishing it from more conventional designs. The watches were available with either black or white dials.

For collectors, the Seiko Izul SDAA001 holds significance due to its innovative movement, distinctive case design, and limited production. Its brief market presence and subsequent withdrawal have made it a sought-after reference, often commanding considerable interest in the secondary market. The model represents a unique chapter in Seiko's exploration of high-end sports watch design and movement technology.

Specifications

Caliber: 5R85

Dial: Black, White

Key Points from the Discussion

The rotating case model, while technically intriguing, presents a visual challenge with one side appearing inverted depending on the orientation, leading some to prefer the non-rotating variant.
The Izul's dial design evokes a retro aesthetic reminiscent of 1970s watches, and the rotating case mechanism, while innovative, might be perceived as a gimmick by some collectors.
The core design philosophy of the Izul, separating chronograph functions from time display through distinct hand colors and dial layout, is a deliberate choice that aligns with the Spring Drive technology.
The unique and 'weird' design of the SDAA001/SDAA007 appeals to collectors who appreciate unconventional and distinctly Japanese aesthetics, moving beyond purely classic tastes.
The original strap is a point of contention, with suggestions for replacement including a dark blue alligator strap with bright yellow stitching to better complement the watch's design.

The Discussion

amanico

Nov 14, 2009

Well, when I see the case, movement and dial

I don't get how you can compare it to the Duomètre... Best, Nicolas

foversta

Nov 14, 2009

As I wrote it:

"The Izul and the Duometre share the idea that the chronograph functions are clearly seperated from the time display: the hands don't have the same color and the layout of the dial is organized with this purpose" That's all ! Of course the watches are different, it's obvious! But they have this common point. Fr.Xavier

CaliforniaJed

Nov 14, 2009

SDAA001 looks like a fun watch!

I agree -- I'd replace that strap in an instant, but I don't think that would be too difficult. I'm thinking a dark blue gator with bright yellow stitching! Thanks for the interesting post. Best, Jed

pplater

Nov 14, 2009

"The Emperor's new clothes...." [nt]

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CaliforniaJed

Nov 14, 2009

Indeed, pplater! [nt]

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Mostel

Nov 14, 2009

Trippy!

That first one is extremely cool!! Glad when I like something that is 'weird'. Then I know I do not have completely classic/traditional taste. Very cool and strange and very Japanese design, with some odd vintage cues. I like it!